His Pop silkscreens from 1963-64 garnered the top prices at each of the three houses, with Christie's getting $38.4 million for his "Self-Portrait"; Phillips $27 million for "Liz No. 5"; and Sotheby's $20.2 million for "Sixteen Jackies."

By the time Pop art came into fashion in the mid-20th century and Andy Warhol began cranking out silkscreens and lithographs with the help of workers at his well-publicized Factory, opinion began to swing back the other way.